Removable and folding barrier element forming barbed wire entanglements for military and other purposes



y 1957 J. L. A..SEE 2,801,081

REMOVABLE AND FOLDING BARRIER ELEMENT FORMING BARBED WIRE ENTANGLEMENTSFOR MILITARY AND OTHER PURPOSES Filed Dec. 27, 1956 2 Sheets-Sheet 1 I/ygn/Tak JJcQiIEsTLASEE BY July 30, 1957 J. L. A. SEE 2,801,081

REMOVABLE AND FOLDING BARRIER ELEMENT FORMING BARBED WIRE ENTANGLEMENTSFOR MILITARY AND OTHER PURPOSES Filed Dec. 27, 1956 2 Sheets-Sheet 2mfrewmk "J4c uEsZ. 4,S E

United States REMOVABLE AND FOLDING BARRIER ELEMENT FORIVHNG BARBED WIREENTANGLEMENTS FOR MILITARY AND OTHER PURPOSES The present inventionrelates to removable and folding barrier elements forming barbed wireentanglements that can be employed for various purposes and moreparticularly for military requirements.

These entanglements are frequently made up of a certain number ofcross-shaped elements which are lined up one behind the other forforming the framework of the barrier, these elements comprising a ringat their middle part, and sometimes, near to their periphery, a secondring intended to impart great rigidity to each element; these variousframework elements are connected by barbed wires extending in alongitudinal direction, in a transversal and diagonal direction,according to various combinations.

. The present invention deals with improvements applied to the formingof entanglements, which greatly facilitate manufacture and also makethem easier to mount on the carrier members of an apparatus intended toposition them on the spot where they are to be utilized.

According to the present invention, the removable and folding barrierelement forming a barbed wire entanglement for military and otherpurposes comprising framework elements delimiting a square and havingfour branches turned according to the diagonals of this square, thesebranches being joined by a middle ring and a peripheric ring containedin said square, is characterized in that each framework element isformed by two rods which are bent before being joined, so asrespectively to delimit two straight parts joined to each other by anopen ring, these rods being, after shaping, attached to each other byengaging the straight parts of one of them in the open ring of theother, until these two rings come together for delimiting the middlering of the framework element Which is locked, by the peripheric ringfixed to the straight parts of the rods.

Various other characteristics of the invention will moreaver be revealedby the detailed description which follows.

One form of embodiment of the purpose of the invention is shown, by wayof example, in the attached drawing.

Figure l is a perspective View illustrating one form of embodiment of anentanglement which is the subject of this invention.

Figure 2 is a perspective view, on a larger scale, of one of theelements of Figure 1.

Figure 3 is a partial perspective view illustrating a particular methodof mounting some of the members forming the entanglement.

Figure 4 is a perspective view similar to Figure 3 showing theconnection existing between two of the 6 members of the entanglement,after mounting.

Figure 5 is a perspective view of a clamp for eifecting the connectionbetween the various members of the entanglement.

The entanglement comprises framework elements forming branches whoseends are pointed so that some of these branches can possibly partlyenter the ground for ate'nt ()3 ensuring the anchoring of theentanglement when it is opened out. The branches 4 are shaped so thatthey approximatelyvfollow the direction of the diagonals of a square inorder thatthe entanglement can be properly seated, whatever the branchesof the framework elements that bear upon the ground. Rings 5 hold thevarious branches 4 together of each framework element.

As shown in Figure 2, each framework element is pref erably made asfollows: 7

Two metal rods arerespectively bent so that each forms two branches 4a,4b and 4c, 4d, these two branches being,

2, this method of mounting only requin'ng, once said rods have beenshaped as explained, to engage each of the straight parts 4a, 4b and 4c,4d respectively in the open ring formed by the joined parts of thesestraight parts of the rods. 7

Owing to the resilience of the metal of which the bent rods are made, asexplained above, the open rings formed by the joined parts of thestraight parts 4a, 4b and 4c, 4d are held firmly against each other;this tightening is further increased when the ring 5 is fixed to the,straight parts 4a to 4d by means of 'welds 15, for example, or bindingwire that may replace these welds.

The framework elements described above are joined together by wires 11extending betweentwo non-adjacent framework elements. These wires arefixed near to the ends of the branches 4, as may be seen by the solidline inFigure 1, then pass and extend appreciably in diagonals of theframework element A to the framework element C. These Wires go throughthe cavities 14 that are delimited as explained above.

The wires used for eifecting this join are, according to a preferredform of embodiment, twisted wires held together by small plates 16,particularly visible in Figure 4, which are shaped so as to exposesharp-pointed parts.

Owingto the existence of these. small plates, it would be difiicult, ifnot impossible to pass the wires 11 directlyinto the cavities 14, butowing to the particular shape. of these cavities, the positioning of thewires is greatly facilitated as may be seen in Figure 3, seeing that itis only necessary, by regarding the wire 11a, to engage the latter inthe ring delimited by the open rings 4 4 then to slip this wire betweenthe foot of the branch 40 and the open ring 4 so that it comes itselfinto the cavity delimited at that spot.

The displacement movement that may possibly take place with the wires 11engaged in the cavities 14 is limited by the small plates 16 which formabutrnents.

In certain cases, for further facilitating the joining of the wires 11and the framework elements of the entanglement, it is possible to useclamps, as shown in Figure 5, in the housing 17 in which the wires areengaged before the jaws 18 of these clamps have been put into positionin the cavities 14 in which they are locked, owing to the resilience ofthe material of which they are made.

As will be seen in Figure l, the framework elements are also joinedtogether by longitudinal wires 7, of the same kind as those describedabove, which are attached near to the ends of the branches 4 (the wires7 are shown by broken lines).

Wires 6, also similar to those described above, are also attached to theends of the branches 4, so as to join all the latter together whiledelimiting a parallelogram in which the rings 5 are contained.

Another set of wires 19 are attached so as diagonally Patented July 30,1957 to join the branches of the various adjacent framework elements:Contingently, other wires (not shown) could also be included in theentanglement, so that, for example, they join together the ends of thebranches 4a, 4d and 4c, 4d of two adjacent framework elements. I

The length of the wire 7 between each framework element is preferablyequal to the length of each wire 6 joining the branches of eachframework element and the length of the diagonal wires 19 is preferablyequal to '/2 the length of these latter wires, which enables, for pilingthe various framework elements one against each other, to turn them atan angle of 90 without running the risk of entangling the wires, seeingthat they are constantly under' tension. This rotation of the framework"elements has the effect of also staggering the notches 12 13 of eachadjacent element by 90", which then makes it possible to position theentanglement by means of a simple apparatus revolving the frameworkelements by'w/ 2 after positioning each of them.

In order to facilitate the mounting of thewire's that must be fixed nearto the ends of the branches 4, it is advantageous to shape the latter sothat they have loops 20 obtained by bending, thus making it possible toput thewires in place without requiring welding or binding wire, seeing.that it is only necessary to engage them in the loops 20, their stopbeing obtained on account of the existence of the small plates 16 thatthey carry. It is alsopos'sible' for the loops 20 to act for fixing thewires by means of clamps'such as those described in Figure 5.

The invention is notrestricted to the form of embodi ment shown anddescribed in detail for various modifications can be applied to itwithout going outside of its scope.

I claim:

1. Removable and folding barrier element forming barbed wireentanglementfor military and other purposes comprising framework elements delimitinga square and having four branches turned according to the diagonals ofthis square, these branches being joined by a middle ringand aperipheric ring contained in said square, characterised in that eachframework element is formed by two rods which are bent before beingjoined, so as respectively to delimit two straight parts joined to eachother by an open ring, these rods being, after shaping, attached to eachother by engaging the straight parts of one of them in the open ring ofthe other, until these two rings come together for delimiting the middlering of the framework element which is locked, by the peripheric'ringfixed to the straight parts of the rods.

2. An element according to claim 1, characterised in that notches aremade by bending in the connecting parts in the shape of an open ringjoining the straight parts of each rod forming the framework elements,these notches delimiting, with the parts facing each other of theadjacent open ring of the other rod, closed cavities.

3. An element according to claim 1, characterised in that the straightparts of the rods forming the framework elements are bent near to theirends so as to delimit loops.

4. An element according to claim 1, characterised in that the frameworkelements are joined together by wires attached near to the ends of thestraight parts of the rods forming them, these wires passing throughcavities delimited in the middle ring of the following frameworkelemeilt, then being fixed near to the ends of the straight parts of therods formingthe following framework element by the cavities from whichsaid wires pass.

5. An element according to claim 1, characterised in that the frameworkelements are joined by wires extending longitudinally right along theentanglement, these wires being fixed near' the ends ofthe straightparts of the rods forming said framework elements.

6. An element according to claim 1, characterised in that the frameworkelements have their ring which acts for locking'the rods forming them,contained in a square delimited by the wires fixed near to the ends ofthe straight parts of the rods.

7. An element according to claim 1', characterised in that the adjacentframework elements are connected by wires extending diagonally from oneelement to another.

8. An element according to claim 1, characterised in that theparallelepiped delimited by two adjacent framework elements compn'seswires extending to the interior of this parallelepiped in a diagonaldirection.

9. An element according to claim 1, characterised in that the wiresacting to jointhe frameworkelements are twisted wires comprising smallplates with sharp-pointed parts.

- 10. An element according to claim 1, characterised in that the wiresare fixed to the ends of the straight parts of the rods forming theframework elements for passing into the loops made by these straightparts.

11. An element according to claim 1, characterised in that the wires areconnected to the framework elements by means of clamps.

No references cited.

